EP1134761A2 - Sélecteur de prises et écran annulaire pour sélecteur de prises - Google Patents

Sélecteur de prises et écran annulaire pour sélecteur de prises Download PDF

Info

Publication number
EP1134761A2
EP1134761A2 EP00127393A EP00127393A EP1134761A2 EP 1134761 A2 EP1134761 A2 EP 1134761A2 EP 00127393 A EP00127393 A EP 00127393A EP 00127393 A EP00127393 A EP 00127393A EP 1134761 A2 EP1134761 A2 EP 1134761A2
Authority
EP
European Patent Office
Prior art keywords
clamping
ring
switch column
contact carrier
shield
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP00127393A
Other languages
German (de)
English (en)
Other versions
EP1134761A3 (fr
EP1134761B1 (fr
Inventor
Wolfgang Dipl.Ing. Albrecht (Tu)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Maschinenfabrik Reinhausen GmbH
Maschinenfabrik Reinhausen Gebrueder Scheubeck GmbH and Co KG
Original Assignee
Maschinenfabrik Reinhausen GmbH
Maschinenfabrik Reinhausen Gebrueder Scheubeck GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Maschinenfabrik Reinhausen GmbH, Maschinenfabrik Reinhausen Gebrueder Scheubeck GmbH and Co KG filed Critical Maschinenfabrik Reinhausen GmbH
Publication of EP1134761A2 publication Critical patent/EP1134761A2/fr
Publication of EP1134761A3 publication Critical patent/EP1134761A3/fr
Application granted granted Critical
Publication of EP1134761B1 publication Critical patent/EP1134761B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/48—Means for preventing discharge to non-current-carrying parts, e.g. using corona ring
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/0005—Tap change devices

Definitions

  • the invention relates to a tap changer for tap transformers according to the preamble of first claim.
  • the invention further relates to one for such a tap changer particularly suitable umbrella ring.
  • tap changers for tap transformers are from the publication "tap changer Type V "known to the applicant. They essentially consist of one of one Insulated cylinder formed oil container and a tap changer insert located therein. At the The inner wall of the oil container is the fixed one in different horizontal planes Arranged contacts, the connection elements are each led through the wall to the outside and in connection with a tap of the regulating winding of the step transformer to be connected stand.
  • the tap changer insert contains the entire movable contact system. It includes an im Inside the oil container, a rotatably mounted switch column, one above the other, each in the same horizontal levels as the associated fixed contacts to be wired, Contact carriers are attached or articulated.
  • the contact carriers in turn carry the movable ones Switch contacts or rollers and other switching means or elements of the tap changer.
  • On both sides the respective contact carriers are shield rings running concentrically around the switch column provided, which is usually an approximately circular or oval, towards the associated contact system open to cross-section.
  • At these umbrella rings are Fastening bracket or brackets formed, by means of which the shield rings on the circumference of the Switch column are screwed.
  • each contact carrier attached to the switch column by a two-part clamping ring.
  • the clamping ring in turn has flanges on its outer circumference, to each of which a shield ring is attached can be.
  • mounting brackets or the like are attached to the respective shield ring Bolting to the flanges required.
  • the object of the invention is to provide a tap changer on which in a simple manner and without additional fasteners are attached to shield rings.
  • Another object of the invention is to provide a suitable, simple construction Specify the shield ring, which is easy to manufacture and assemble.
  • the tap changer according to the invention has the great advantage that the on its switch column Shield rings of each contact system directly on the two clamping rings or Fastening clamps which comprise the switch column and the contact carrier in a known manner Fasten on this non-positively and positively, and be pinched with it. This eliminates on the one hand separate fasteners for the shield rings, on the other hand, the assembly itself easier. Together with the fastening of the respective contact carrier on the switch column The respective clamping rings or fastening clamps are clamped together Umbrella rings.
  • the shield rings according to the invention which are suitable for such jamming point to this a specially designed concentric clamping shaft with a clamping area.
  • This Shield rings are advantageously formed in one piece and do not have to be combined with additional ones Angles or the like Fasteners are provided; they can be produced in a single operation and therefore do not require any major post-processing, further processing or pre-assembly Parts.
  • FIG. 1 will be explained in more detail. Inside the, not shown, by one Isolierstoff cylinder formed, housing of the tap changer extends longitudinally and centrally through this a known switch column 1, preferably made of GRP or other insulating material, all movable switching elements carries.
  • the switch column 1 is rotatable in a known manner; to serve usually Maltese drives, which are not shown here.
  • The is also not shown Storage of the switch column 1 shown only in part.
  • the switch column 1 carries in each level of the fixed step contacts to be connected - not shown - here is only one such level 2 shown, a bearing block 3.
  • the bearing block 3 each has an upper two-part clamping ring 4 and a lower, also two-part clamping ring 5 for attachment.
  • Both parts 41, 42 of the upper Clamping ring 4 and both parts 51, 52 of the lower clamping ring 5 comprise the switch column 1 and are each by means of clamping screws 6, 7 arranged outside the switch column 1 non-positively clamped on the switch column 1.
  • the bearing block 3 in turn has a bearing point 31 at which the actual contact carrier (not shown here), which receives the mechanical and electrical switching elements, articulated is. Such a movable articulation is described in detail in DE 198 21 775 C1.
  • the contact carrier in each case by non-positive and positive locking of an upper clamping ring 4, which consists of two parts 41, 42, and a lower clamping ring 5, which in turn also consists of consists of two parts 51, 52, wherein, as explained, the corresponding parts 41, 42 and 51, 52 comprise the switch column 1.
  • FIG. 1 also shows two fixing bolts 8, 9, each with one of its sides in a bore 10, 11 in the switch column 1 and with its other side in a further bore 12, 13 engage in the bearing block 3.
  • this provides assembly aid, d. H. it is one clear location assignment of the parts to be fastened on the switch column 1. In addition this creates a positive connection, d. H. an anti-rotation device, guaranteed.
  • both parts 41, 42 of the upper clamping ring 4 and both parts 51, 52 of the lower clamping ring 5 each on its cylindrical inner surface facing the switch column 1 a circumferential clamping groove 411, 421; 511, 521.
  • an upper shield ring 14 with its open side Contact system facing, in the area of the upper clamping ring 4 in its circumferential clamping groove 411, 421 and another, identical shield ring 14 in the reversed installation position, likewise with the open side facing the contact system, in the area of the lower clamping ring 5 in whose clamping groove 511, 521 is attached. So that the shield rings 14 are easily on the Switch column 1 attached without additional fasteners being required for this.
  • Such a shield ring 14 is shown in FIG. 2 alone. It's made of thin material, preferably made of thin sheet steel, from which it can be pressed in a combined operation and rolls can be manufactured. It has a shielding plate 141, the free side of which is open at the top is; this area realizes the actual electrical shielding effect. On this shield plate A circumferential, rolled edge 142 is formed, which is open on one side.
  • the umbrella ring 14 also has an integrally formed, tulip-shaped fastening shaft 143, which in turn has a guide area 144 and a clamping area 145 at its free end.
  • the Shield ring 14 as a whole is a completely rotationally symmetrical component, the molded one of which Fastening shaft 143 is dimensioned such that the entire shield ring 14 over the Switch column 1 can be pushed.
  • the inside diameter of the guide area 144 is included only slightly larger than the outer diameter of the corresponding switch column 1.
  • the Clamping area 145 of the shield ring 14 has a slightly larger one at its free end Diameter than the guide area 144, so that it with the respective clamping groove 411, 421; 511, 521 of the respective clamping ring 4, 5 corresponds and in this form-fitting in the axial direction intervenes.
  • the clamping rings 4, 5 are opened by subsequently tightening the clamping screws 6, 7 the switch column 1 clamped, and at the same time there is an axial fixation of the respective shield ring 14 guaranteed.
  • FIG. 3 shows a section from above through the one already shown in FIG. 1 Step switch shown in the section plane A-A, but without mounted shield rings. It is here the two parts 41, 42 of the upper clamping ring 4 and the bearing block 3 can be seen. Furthermore are the clamping grooves 411, 421 shown, which - as already explained as particularly advantageous - inwards have directed prongs 412, 422, by means of which when mounting a shield ring 14 inserted clamping area 145 is deformable when tightening the clamping screws 6.
  • the two parts 51, 52 of the lower clamping ring 5, not shown here, also have clamping grooves, quite analogously with jags on.
  • the advantages of the described shield ring 14 according to the invention are numerous. First of all is a completely rotationally symmetrical component with almost ideal electrical Shielding properties. Such a shield ring 14 is easy to manufacture, easy to assemble and removable and last but not least due to the one-piece construction, stable and resistant to All kinds of loads, especially against vibrations caused by the transformer.

Landscapes

  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
  • Motor Or Generator Frames (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
EP00127393A 2000-03-11 2000-12-14 Sélecteur de prises et écran annulaire pour sélecteur de prises Expired - Lifetime EP1134761B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10011966 2000-03-11
DE10011966A DE10011966C1 (de) 2000-03-11 2000-03-11 Stufenschalter und Schirmring für einen Stufenschalter

Publications (3)

Publication Number Publication Date
EP1134761A2 true EP1134761A2 (fr) 2001-09-19
EP1134761A3 EP1134761A3 (fr) 2004-07-14
EP1134761B1 EP1134761B1 (fr) 2006-03-08

Family

ID=7634399

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00127393A Expired - Lifetime EP1134761B1 (fr) 2000-03-11 2000-12-14 Sélecteur de prises et écran annulaire pour sélecteur de prises

Country Status (3)

Country Link
EP (1) EP1134761B1 (fr)
AT (1) ATE320076T1 (fr)
DE (2) DE10011966C1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010006308A1 (de) 2010-01-30 2011-08-04 Maschinenfabrik Reinhausen GmbH, 93059 Laststufenschalter

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4219428A1 (de) * 1992-06-11 1993-05-19 Slamecka Ernst Vakuumschaltroehre
DE9407087U1 (de) * 1994-04-28 1995-08-24 Reinhausen Maschf Scheubeck Lastwähler
DE19821775C1 (de) * 1998-05-14 1999-10-14 Reinhausen Maschf Scheubeck Lastwähler

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9405427U1 (de) * 1994-03-30 1995-04-27 Reinhausen Maschf Scheubeck Lastwähler mit Überschaltwiderständen

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4219428A1 (de) * 1992-06-11 1993-05-19 Slamecka Ernst Vakuumschaltroehre
DE9407087U1 (de) * 1994-04-28 1995-08-24 Reinhausen Maschf Scheubeck Lastwähler
DE19821775C1 (de) * 1998-05-14 1999-10-14 Reinhausen Maschf Scheubeck Lastwähler

Also Published As

Publication number Publication date
EP1134761A3 (fr) 2004-07-14
DE50012355D1 (de) 2006-05-04
EP1134761B1 (fr) 2006-03-08
ATE320076T1 (de) 2006-03-15
DE10011966C1 (de) 2001-06-28

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